05 Silverado reg cab 2wd

I'm finally having to let my Z71 go because it's starting to turn into a little bit of a money pit so I'm looking at buying a 05 reg cab 2wd Silverado and I'm trying to figure out if a leveling kit will sit it up as high as a 4wd or will it still be a little lower even if it's leveled out? I've been looking everywhere trying to find the spec difference between the 2 and 4wd but I can't find any decent info on it. Any info is appreciated.